Quantitative Aptitude - Arithmetic Ability Questions

The angle of elevation of the top of a tower from a point A on the ground is 30°. On moving a distance of 20 metres towards the foot of the tower to a point B, the angle of elevation increases to 60°. The height of the tower in meters is

Find the odd word/letters/number pair from the given alternatives.

What is the area (in sq cm) of a rectangle if its diagonal is 25 cm and one of its sides is 24 cm?

The areas of a circle and square are equal. What is the square of the ratio of length of diameter to the length of diagonal?

Mummy can bake 75 cakes in 15 hours, Mummy and Sister together can bake 120 cakes in 20 hours. How many cakes Sister can bake in 30 hours?

An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 21⁄2 hours to fill the tank. The leak can drain all the water off the tank in how many hours?

A train is moving at the speed of 90 km/hr. How many seconds it will take to cover a distance of 2275 meter?

To travel 660 km, an Express train takes 10 hours more than Rajdhani. If however, the speed of the Express train is doubled, it takes 7 hours less than Rajdhani. The speed of Rajdhani is